4040-28J matrix leadframe



FIG. 1 is a top plan view of a portion of a matrix incorporating a plurality of 4040-28J matrix leadframe showing my new design;

FIG. 2 is a top plan view of an enlarged fragment of the 4040-28J matrix leadframe shown in FIG. 1 for ease of illustration; and,

FIG. 3 is a perspective view of FIG. 1. 

The ornamental design for 4040-28J matrix leadframe, as shown and described. 